//1. 安装 mongoose
//2. 导入 mongoose
const mongoose = require("mongoose");

mongoose.connect("mongodb://127.0.0.1:27017/bilibili");

mongoose.set("strictQuery", true);

// 事件回调函数只执行一次
mongoose.connection.once("open", () => {
  console.log("连接成功");
});

mongoose.connection.on("error", () => {
  console.log("连接失败");
});

mongoose.connection.on("close", () => {
  console.log("连接关闭");
});

// setTimeout(() => {
//   mongoose.disconnect();
// }, 2000);
